Description of radiative decays of $V \to P \gamma^{*}$ in different forms of Poincaré-invariant quantum mechanics
| Autor: | Alexander F Krutov, Roman G Polezhaev |
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| Jazyk: | English<br />Russian |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, Vol 19, Iss 2, Pp 259-269 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1991-8615 2310-7081 |
| DOI: | 10.14498/vsgtu1378 |
| Popis: | The description of the radiative decays of $V \to P \gamma^*$ in different forms Poincaré invariant quantum mechanics (PIQM) is considered. To construct the matrix element of the electromagnetic current we use the non-diagonal parametrization procedure. The obtained matrix element of the current satisfies the conditions of the Lorentz covariance and conservation. To illustrate this approach in a modified relativistic impulse approximation the description of the radiative transition $\rho \to \pi \gamma^{*}$ is performed. An analytic expression for the transition form factor $F_{\pi \rho}(Q^2)$, matching all forms PIQM, is obtained. Numerical calculations of the transition form factor are made with different model wave functions. |
| Databáze: | Directory of Open Access Journals |
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